/**
 * Copyright (c) 2011-2019, James Zhan 詹波 (jfinal@126.com).
 * <p>
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * <p>
 * http://www.apache.org/licenses/LICENSE-2.0
 * <p>
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package yun.web.activerecord;

import java.lang.reflect.InvocationHandler;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.lang.reflect.Proxy;
import java.sql.Connection;

/**
 * SqlReporter.
 */
public class SqlReporter implements InvocationHandler {

    private Connection conn;
    private static boolean logOn = false;

    SqlReporter(Connection conn) {
        this.conn = conn;
    }

    public static void setLog(boolean on) {
        SqlReporter.logOn = on;
    }

    @SuppressWarnings("rawtypes")
    Connection getConnection() {
        Class clazz = conn.getClass();
        return (Connection) Proxy.newProxyInstance(clazz.getClassLoader(), new Class[]{Connection.class}, this);
    }

    public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
        try {
            if (method.getName().equals("prepareStatement")) {
                String info = "Sql: " + args[0];
                if (logOn)
                    LogKit.info(info);
                else
                    System.out.println(info);
            }
            return method.invoke(conn, args);
        } catch (InvocationTargetException e) {
            throw e.getTargetException();
        }
    }
}




